(共9张PPT)
SPACE
EXPLORATION
Period
6
Expanding
Your
World(P84)
1.
identify
and
analyze
the
usage
of
infinitives
as
adverbials
and
attributes
;
2.
master
the
usage
of
infinitives
as
adverbials
and
attributes
through
self-study
and
practice.
3.
use
infinitives
to
describe
space
facts
and
efforts
to
explore
space.
By
the
end
of
this
period,
you
will
be
able
to
Teaching
objectives
Reading
What
is
the
Big
Bang
Theory?
“大爆炸宇宙论”（The
Big
Bang
Theory）是现代宇宙学中最有影响的一种学说。它的主要观点是认为宇宙曾有一段从热到冷的演化史。在这个时期里，宇宙体系在不断地膨胀，使物质密度从密到稀地演化，如同一次规模巨大的爆炸。
Watching
What
is
the
Big
Bang
Theory?
Listening
The
beginning
of
everything—The
Big
Bang.
The
idea
that
the
universe
was
_________
born
and
is
not
infinite.
Up
to
the
middle
of
the
20th
century,
most
scientists
_______
____
the
universe
as
infinite
and
ageless.
Until
Einstein’s
________
of
relativity
gave
us
a
better
understanding
of
________
and
Edwin
Hubble
discovered
that
galaxies
are
moving
apart
from
one
another
in
a
way
that
fits
_________
predictions.
In
1964,
___
________,
cosmic
background
radiation
was
discovered,
a
relic
of
the
early
universe,
which,
together
with
other
observational
evidence,
made
the
Big
Bang
the
accepted
theory
in
science.
Since
then,
improved
___________
like
the
Hubble
telescope
has
given
us
a
pretty
good
picture
of
the
Big
Bang
and
the
structure
of
the
cosmos.
Recent
observations
even
seem
to
________
that
the
expansion
of
the
universe
is
accelerating?
But
how
did
this
Big
Bang
work?
How
can
something
come
from
nothing?
Let’s
________
what
we
know.
suddenly
thought
of
theory
gravity
previous
by
accident
technology
suggest
explore
Reading
What
is
the
Hubble
Space
Telescope?
哈勃空间望远镜（英语：Hubble
Space
Telescope，缩写：HST）是以美国天文学家爱德温·哈勃为名，于1990年4月24日成功发射，位于地球的大气层之上的光学望远镜。
2019年5月，哈勃太空望远镜科学家公布了最新的宇宙照片——“哈勃遗产场”(HLF)，这是迄今最完整最全面的宇宙图谱，由哈勃在16年间拍摄的7500张星空照片拼接而成，包含约265000个星系，其中有些已至少133亿岁“高龄”，对其进行研究有助于科学家深入了解更早的宇宙历史
Reading
What
is
FAST?
500米口径球面射电望远镜（Five-hundred-meter
Aperture
Spherical
radio
Telescope，FAST），位于中国贵州省黔南布依族苗族自治州境内，它于2011年3月25日动工兴建；于2016年9月25日进行落成启动仪式，该科技基础设施进入试运行、试调试工作于2020年1月11日通过中国国家验收工作，正式开放运行。
500米口径球面射电望远镜开创了建造巨型望远镜的新模式，建设了反射面相当于30个足球场的射电望远镜，灵敏度达到世界第二大望远镜的2.5倍以上，大幅拓展人类的视野，用于探索宇宙起源和演化。
Reading
What
is
quantum
satellite?
量子通讯卫星是一种传输高效的通信卫星，彻底杜绝间谍窃听及破解的保密通信技术，抗衡外国的网络攻击与防御能力。
量子信号从地面上发射并穿透大气层——卫星接收到量子信号并按需要将其转发到另一特定卫星——量子信号从该特定卫星上再次穿透大气层到达地球某个角落的指定接收地点。
THANKS
